body {
    margin:0px;
    background-image:none;
    position:relative;
    left:-0px;
    width:1540px;
    margin-left:auto;
    margin-right:auto;
    text-align:left;
  }
  .d1{
      background-color: aqua;
      display: flex;
    justify-content: center;
    align-items: center;
    height: 195px; /* 假设容器高度为 300px */
    width: 1540px;
  }
  .d1>h1 {
      text-align: center;
      color: white;
      font-family:李旭科毛笔行书, sans-serif;
    }
    .d2{
      width: 300px;
      position: relative;
      top: 20px;
      left: 300px;
    }
    .d2_1{
      margin: 100px 0; /* 上下边距为 10px，左右边距为 0 */
    }
    .d3{
      width: 300px;
      position: relative;
      top: -620px;
      left: 900px;
    }
    .d3_1{
      margin: 100px 0; /* 上下边距为 10px，左右边距为 0 */
    }
    .d4{
      display: flex;
    /* justify-content: space-between; */
      width: 900px;
      height: 20px;
      position: relative;
      top: -620px;
      left: 300px;
    }
    .d4_1{
      margin: 0  20px;
    }
  
    .d5{
      display: flex;
    /* justify-content: space-between; */
      width: 500px;
      position: relative;
      top: -500px;
      left: 600px;
    }
  a{
    text-decoration: none;
    font-size: 20px;
  }
  .d6{
    width: 150px;
    height: 25px;
    color: white;
    
    background-color: rgb(0, 156, 246);
    text-align: center;
    border: 2px solid rgb(0, 51, 255);
    border-radius: 20px;
  }
  .d7{
    display: flex;
      /* justify-content: space-between; */
      width: 150px;
      position: relative;
      top: -500px;
      left: 1300px;
  }
  